CAPSULATED TONER FOR HEAT AND PRESSURE FIXATION AND ITS PRODUCTION

摘要

PURPOSE:To enable easy cleaning at the time of removing an untransferred toner on a photosensitive body by blade cleaning even in the case of a high copying speed and a high printing speed by imparting a nonspherical surface shape. CONSTITUTION:When a capsulated toner for heat and pressure fixation is produced by forming shells so as to coat the surface of a heat-meltable core material contg. at least a thermoplastic resin and a colorant, the surface shape of the resulting toner is made nonspherical by carrying out a polymn. reaction in a dispersive medium having 120-1,000cps viscosity at 25 deg.C and the objective capsulated toner for heat and pressure fixation is produced.